Fluidised Aerobic Bio-Reactor (FAB) as the name indicates consists of floating media of cylindrical shapes and different sizes. As compared to conventional technologies FAB reactors are compact, energy efficient and user friendly.

Basic principle

Flock forming organisms form clusters or attach to available surfaces. The FAB media provides a very large surface area ( 450 M2 per M3 volume ) which

The clarified effluent enters into the FAB reactor, which contains the FAB media. The FAB media significantly increases the surface area for bacterial growth. Air is supplied through fine bubble diffusers. Bacteria oxidise the organic matter present in the sewage. Oxidised sewage overflows out of the FAB reactor, into the secondary settling tank.

Advantages using FAB Reactor:

Significant reduction in space requirement due to high surface area & loading rate of FAB media.
Reduced power and operating costs
No sludge recycle required hence no sludge recycle pumps.